# Distance from Boston (BOS) to Sliac (SLD)

> 6,638 km · estimated flight time 9h · Long-haul route.

## Summary

- **Distance**: 6,638 km / 4,125 mi / 3,584 nm
- **Estimated flight time**: 9h
- **Heading**: 50° (northeast)
- **Return heading**: 301° (west northwest)
- **Classification**: Long-haul
- **Type**: International (United States) → Slovakia
- **Intercontinental**: North America → Europe
- **Time difference**: +6h (When it's 00:15 in Boston, it's 06:15 in Sliac)
- **Elevation difference**: 1,024 ft (SLD is higher than BOS)

## Airports

### [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)

- City: Boston, United States
- ICAO: KBOS
- Timezone: America/New_York
- Coordinates: 42.360000, -71.010000
- Elevation: 19 ft

### [Sliac Airport (SLD)](https://www.flightduration.online/airport/sld-sliac-sliac-airport/1ef266df-5a2e-657a-823f-06bb2780ed98)

- City: Sliac, Slovakia
- ICAO: LZSL
- Timezone: Europe/Bratislava
- Coordinates: 48.640000, 19.130000
- Elevation: 1,043 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 00:15 in Boston, it's 06:15 in Sliac.
With a 6-hour time difference, expect significant jet lag.

## Related

- [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)
- [Sliac Airport (SLD)](https://www.flightduration.online/airport/sld-sliac-sliac-airport/1ef266df-5a2e-657a-823f-06bb2780ed98)
- [Flight duration calculator](/#calculator)